Power steering question
 

Hi, I have a question regarding the power steering. I have a 90 GTU, so it has the speed sensitive steering right. I just recently installed a haltech, with a 13b-re, still on the oem gtu PS pump and rack. SO the question is what type of signal is the power steering pump looking for to turn off. I want to just make it RPM based, and have it switch off over 3000 RPM. Any ideas?

Thanks,,,